(b)(4).During processing of this complaint, attempts were made to obtain complete event, patient and device information.(b)(4).Evaluation summary: the device was returned for analysis.Visual and dimensional inspections were performed on the returned device.The stent damage was confirmed.Additionally, a tear was noted at the guide wire exit notch.The failure to advance could not be replicated in a testing environment as it was based on operational circumstances.A review of the lot history record identified no manufacturing nonconformities issued to the reported lot that would have contributed to this event.Additionally, a review of the complaint history identified no other similar incidents from this lot.The investigation determined the difficulties appear to be related to circumstances of the procedure.Based on the information reviewed, there is no indication of a product quality issue with respect to the design, manufacture or labeling of the device.
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It was reported that during a procedure of the moderately calcified coronary artery, the xience stent delivery system (sds) failed to cross the lesion and after removal of the sds from the anatomy, the stent tip was noted to be bent.There was no reported adverse patient effect.A different unspecified stent was used to complete the procedure without reported issue.There was no reported clinically significant delay in the procedure.No additional information was provided.Return device analysis revealed that the guide wire exit notch was torn.
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